Size guide: 1/4” – 10 lbs and under 3/8” – 11-30 lbs 1/2” – 31-70 lbs 5/8” – 71 lbs and up All Soft Lines leashes are crafted from premium multifilament polypropylene fibers, ensuring they remain soft and flexible even in cold conditions. Unlike other materials, these fibers resist slivering, making our leashes comfortable for both you and your pet. The custom weave of our leashes provides built-in stretch, allowing for gentle give while also releasing knots more easily than nylon or cotton ropes. One of the unique benefits of our polypropylene leashes is their natural buoyancy—they float effortlessly on water. Additionally, they offer exceptional resistance to saltwater, won’t absorb moisture, and can be stored wet or dry without compromising their durability. **1/4" diameter leads cannot have custom labels